Functions Review

Which sets of ordered pairs are functions?

Choose all that apply.

• (9, -1), (8, -2), (7, -3), (6, -4)

• (5, -1), (5, -2,), (5,12), (5, 0)

• (4, 2), (-4, 2), (2, 4), (-2, -4)

• (1, -4), (2, -4,), (3, -4), (4, -4)

• (5, 8), (4, 9), (5, 9), (4, 8)

Tags

CCSS.8.F.A.1

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Does the following represent a function?

{(-7,0), (8,-4), (-8,-8), (5,1), (-8,9)}

• Yes

• No

Tags

CCSS.8.F.A.1

Which words describe the x-values in a function?

• Domain

• Range

• Input

• Output

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which of the following is the correct definition of a function?

• A relation where each input has exactly one output

• A relation where each input has multiple outputs

• A relation where each output has multiple inputs

• A relation where inputs and outputs are the same

Tags

CCSS.8.F.A.1

• 16

• 48

• -28

• 4

Tags

CCSS.HSF.IF.A.2

• -67

• 67

• 77

• -77

Tags

CCSS.HSF.IF.A.2

• -20

• 20

• -24

• 24

Tags

CCSS.HSF.IF.A.2

Which of the following statements are true about the relation shown?

• The relation is a function

• f(-2) is undefined

• f(1) is undefined

• f(-1) > f(2.3)

• f(f(f(f(f(f(4))))) = 4

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the value of f(-1)?

• undefined

• -2

• 1

• -1

• a correct answer is not shown

Tags

CCSS.HSF.IF.A.2